
public class InterfaceTest4 {
    public static void main(String[] args) {
        C c = new C();
        t(c,c);
        System.out.println(c.n1);
        System.out.println(AInterface.n1);
        System.out.println(CInterface.n1);

    }
    public static void t(AInterface aInterface,BInterface bInterface){
        bInterface.say();
        aInterface.hi();

    }
}
